Paper-folding machine.



.A. 15. PEJAUO & J" J. ZEITZ.

PAPER FOLDING MACHINE.

APPLICATION FILED SEPT.- 12, 1910.

Patented June 9,1914;

11 SHEETS-SHEET l.

8 PAGE 0 S s M; r ET T TP N .E WDZ. .mw

mnm I Y D PARALLEL 6 PAGE ATTEaT amayw A. D. PEJAUO & J. J. ZEITZ.

PAPER PDLDING MACHINE. APPLICATION FILED SEPT. 12, 1910.

Patented une 9, 1914- 11 SEKETS-SHEET 3.

lmvm'roRs ALBURT I). PEIAUO Jomv \T. ZEI Z.

ATTEsT w 3% MW A. D. PEJAUO & J. J. ZEITZ. PAPER FOLDING MACHINE. APPLICATION FILED SEPT-.12, 1910.

1,099,884. Patented June 9,1914.

11 SHEETS-SHEET 4.

J l- 1 ATTEST !HvEHTORs ALBURTJIPEJAUO. 1% Z B Tom. I. Zak:

I v I Y I A. 1). PBJAUO & JQJ. ZBITZ.

PAPEIL FOLDING MACHINE. APPLICATION TILED SEPT.12,1910.

Patented June 9, 191 A 11 SHEETS-SHEET a.

, ATTEBT- 1 A. DJ'PEJAUQ & J J. ZEITZ! PAPER FOLDING MACHINE,

"APPLICATION FILED SEPT. 12, 1910.

1 099 4 Patghted June 9,1914

11 SHEETS-SHEET I.

\nvENToRs Ail-BURT DTEJIWO rm J. Zen-z v I ,5 I 1 1 Y WTW PAPER FOLDING MACHINE. AEPLIGATION FILED SEE-L12, 1910.

' Patented June 9, 191% 11 SHEETS-$111311 8.

9 5% W REA T 5w 1 MPEA EDZ v wwI TW L Awe-s1- im I A. D. PEJAUO & J. J. ZEITZ.

PAPER FOLDING MACHINE.

APPLIOATION FILED SEPT. 12, 1910.

1,099,884. Patented June 9,1914.

11 SHEETS-SHEET 9.

an; F1 I e91 zW m .1 I64 L 82 106 1 i 108 97,100 75 ',9?' v y l JJ I E w IATTEST 14; 102; 5 IHVENTORB4 ALBUR\D.PEJFWO\ Jenn lZEiTL' A. D. PEJAUO & J. J. ZI SITZ.

PAPBR'POLDING MACHINE.

APPLICATION FILED SEPT. 12, 1910.

Patented June 9, 1914.

11 SHEETS-SHEET 10 Z Mb \NVENTDRS. ALsuRT DfPaamo Beau 3. ZEH'Z. BY 3- g ATTEST A. D. PBJAUO'& J. J. 5112,

PAPER FOLDING MACHINE. APPLICATION FILED SEPT, 12, 1910',

Patented June 9, 1914.

1,1 $HEETSSHEET 11.

ALBURT DTzmuo. J'orm 1212112.

A l fil'l l li @FFEQ ALBURT D. FEJAUO, OF CLEVELAND, AND J'GHN J. ZEITZ, OF 'WARREN, GH'LG.

ASSIGNORS TO THE AMERICAN FOLDING MACHINE COMPANY, GF-CLEVE- LAND, OHIO, A CORIPORATION OF OHIQ.

PAPER-FOLDING MACHI'NKl.

Application filed September 12, 1910. Serial Ho. 581,521.

To all whom. it may concern:

Be it known that we, ALBURT D. PEJAUO and JOHN J. Znrrz, citizens of the United States, residing at Cleveland, in the county of Cuyaho'ga' and Stateof Ohio, and \Varren, in the county of Trumbull and State of Ohio, respectively, have invented certain.

new and useful Improvements in Paper; Folding Machines, of which the following is i be folded absolutely true and accurately at a rapid speed regardless of the, size or thickness of the paper or the number of folds made therein.

In construction, the machine is particularly designed to eliminate static electricity sons to avoid check and inaccuracy in feeding and folding operations, and theparts are particularly arranged ,and constructed to give an open view and convenient accessibility to the interior, especially along the line of travel of the paper.

Finally, the machine eihbodies stacking means to cotiperate with the adjustable folding means and which stacking means is also adjustable and particularly positioned in relation to the adjustable folding means so as to permit stacking of all of the different kinds of folded sheets adapted to be produced by this machine.

Other objects are also hereinafter described. a

In the accompanying drawings, Figure l is a plan view of the improved machine. Figs. 2 to 7 inclusive are diagra iniatic views on a reduced scale of six sheets of paper with different fold lines as adapted to be produced by this machine. Thus, Fig. illustrates a single fold to produce what commonly known in. the printers artas I fourpage sheet. Fig. 3 represents folds- Specification of Letters Eatent.

Patented Juliet), 1%14.

at right angles to produce an eight page sheet. Fig. 4 shows two right an is folds to make a twelve-page sheet, and Fig. 5 shows three parallel folds and one right angle fold to make a sixteen page sheet. Figs. 6 and 7 show six-page and eight-page sheets, respectively, as produced by parallel folds alone. Fig. 8 is a side elevation of the complete machine with the fly-Wheel of the machine removed and the frame partly broken away to more clearly disclose the interior construction, and Fig. 9 is a side elevation of the opposite side of the "machine. Fig. 10 is a perspectiveview of the sectional cam disl: used to time initial feeding operations for the paper sheets. Fig. 11 is an end elevation of the complete machine looking in from the feed side of the machine, and FigI 12 is..a1i end elevation looking in at the stacker side of the machine. Fig. 13 is a sectional view centrally and vertically through the machine on line 13-13, Fig. 12. Fig. 14- is a sectional view on vertical-line re-1a of Fig. 13. Fig. 15 is a sectional view on vertical line 15-15, Fig. 14. Fig. 16 is a sectional detail enlarged of one of the laterally adjustable rack rollers on its supporting shaft. 17 is a sectional View in plan on an irregular line horizontally at the top of the machine immediately below the top plate thereof. Fig. 18 is an enlarged sectional'detail of the cam for actuating the third folding blade. view in plan on horizontal line 19-19, 13. Fig. 20" is an enlarged cross sectional View of a portion of the slotted center plate and showing the rotary frame and creasing rolls and parts carried thereby in set position to deflect a folded sheet of paper without making a third fold therein. Fig. 21. is an enlarged plan and sectional'view of one of the stackers, disclosing also the rotatable frame which carries the creasing and dclivery rolls in one of its working posit-ions in relation thereto. Fig. 22 is a sectional view and side elevation on line :22-22, 21. Fig. 23 is a sectional view similar to Fig. 13 but showing the second and third folding mechanisms as rotarily shifted to operatively alinewith the ho izontal slot in the center plate instead of the vertical slot. F g. is a detail sectional view of a portion Fig. 19 is a sectional Y sheet direct to the creasing rolls and the stackers.

The main frame of the machine consists of open side pieces 2 united by top plates 3 and a central cross wall or plate 4: vertically arranged beneath the same, and the top is divided by a slot 5 parallel with and at one side of central plate 4, which also is slotted from front to rear by a pair of slots (3 and 7, respectively, which bisect each othe at right angles. The first fold in a sheet of paper is produced by vertically reciprocating blade 8 operating in slot 5, and the second fold of the sheet is made by a horizontally reciproeating blade 9 which operates in either one of the two slots 6 or 7 in central plate 4.

The initial feed.lhe paper sheet is fed beneath theifirstfolding blade 8 by a pair of rollers 10 and 11 located above and below top-plate 3, respectively, in advance of said blade, roll 10 being supported by an. oscillating frame 12 pivotally secured to stand ards 13 which slidably confine support ll for blade 8 at its ends. Frame 12 has a depending arni (see Fig. 9) with a roller at its end which has riding engagrenn-nt with a sectional disk cam 16 (see Fig. 10) whereby said frame and roller 10 is raised at timed intervals to discontinue forward feed of the pape" and to release grip upon the same when the first folding blade 8 is in operation. Three cam disks are. shown as rotatably adpistable in respect to each other to shorten or lengthen the duration of feeding operation according to varying lengths of paper or the position of the first fold to be made therein. In feeding the paper to roller 10 a pair of laterally adjustable guides 17 on plate 3 determine its position relatively to a longitudinal center line (I---C, Fig. 1. Guides 17 slide in cross. grooves or slots 18 in the top fare of plate 0 and these grooves are beveled or inclined upwardly as shown in Fig. 13 to prevent any impediment or check in feeding the paper. The paper sheet further guided into or beneath roll 10 by a hooded deflector 19 on. oscillating frame 12 In operation, the sheet is then forcibly fed over the top plate and beneath blade 8 until it engages a stoppage 20' adjustably secured to the top plate in any predetermined set position thereon as provided for by thumbscrew 21 and numerous screw openings 22; Suitable side guides 23 having fastening thunihnnts 2 1- may also be used to keep the paper in straight aliuement after passing blade 8. Obviously any other guide and stop adjustment may be used. However, when the paper sheet strikes stop gage 20 it is essential that the paper shall not rebound or have a return movement, otherwise absolute accuracy in producing the first fold cannot always be obtained. Therefore, roll 10 is not lifted until folding blade 8 comes into action, butin the 1neanme -auwith time roller ll nee :ril rm'olms, and as u. i praelcally impossible to time the action r-l these parts without talking a buchle in the paper, a cross-bar 2: -d to bridg the paper at one side of bl c; whirh pre rents buckling; of the paper at this side of the bhulc. in addition. plate El is; formed with a swell or rounded rib ill} paralleling blade t; at a point internnaliale roll ill and the blade. which positively produces a buel-de in lhepaymr at this point to take care of any surplus in the paper :l'ced and in order to be assurtal that the paper will a|-- ways abut against sloppao e 20. Then to assure jl'eed of paper beneath blade ti, a deflector plate 2? is placed above rounded rib 26, see Fig". .l-l.

T/u' j/m/ '"o///.---l*olding blade d has a relativtdy short intermittmit travel timed to the raising; and lowering; of had roller 10 and other working parts of the machine as heli'ina'l'ter more parti nlurlr described. Only a short movement of blade 8 is reipiired to carry the paper llll'oilgjjl) slot 55 to produce and detm'mine the first fold as this o 3 eration inrnerliatel carries the folded portion of the sheet into the bite of a pair o'l'rollers 98 l ruled 'ltlllftlbll plate 53 on either side of slot 5. (inc of said rollers is mounted in slidable hearings or boxes which are spring pressed, whereby paper of varying thiehnes... may be permitted to pass be tween the rollers and to be folded or creased thereby. but creasing or ironing;- outof the fold is not the. only function of those rollers as they also act as feed rollers to carry the folded sheet downwardly bet noon :1 series of rollers 5 1 and a series of rolls ll. located in openings in plate 11-. llinrever these separate series of roll .:rs do not grip the sheets but are about one thirty-seeoinl o'l an inch apart as their function is to merely assure an uninterrupted feed downwardly until the sheet halted by suitable gage-stops 32. Said gage-stops determine the distance to which the sheet will be fed below horizontal slot 7 and adiustn'ients thereof are n'nide by bolts and nuts 33 slidably confined in vertin-ul slots Ill in plate, see l in'. ll. Two gagestops 32 are used. one at either side of the central rerliral slot 3 in the plate .1, and as a further precaution two or more paper rctaiuers 35 are detaehably nioinitcd thereon to hold the paper sheet ilat againstplate 4. These retainers may be adjusted both vertically and laterally'upon said gage stops by means of lillllllllllll'lls 36 adapted to i pass through longittnlinal slots in the retainers and screw into any due of the. numerous screw openings 37 in the gage-stop; see Fig. 14.

Paper positioning 7)a-rl's.---No :v, it will he noted that vertical slot 6 in plate l is located centrally between the ends of loldirui; blade 8, and that paper guides it? on the top plate may be set to feed paper of any width centrally in respect to said slot or to any distance at either side thereof as may be predetermined, This permits various kinds of folds to be made and particularly when some fold is produced subsequently. This is referred to at this time for the reason that guides 17 are not alone depended upon for guiding and alining the paper. sheet relatively to vertical slot 6 as a second pair of guide and gage strips 38 and 39, respectively, are also used. These strips are vertically mounted on the face of cross plate 4 between rolls 31 and roller frames 40 which carry rollers 30. Guide and gage strip 38 is laterally adj ustable at the right of vertical slot 6', see Fig. 14,. a thumb and lock nut 41 being used and adapted to be slidably confined in cross slot 42 in plate 4. When adjusted this plate 38 is fixed parallelly to vertical slot 6 and becomes a fixed guide and stop for: the paper at one edge and positively determines the position of the folded sheet in making the second fold. This is material as it is customary in printing shops to out only two edges of the paper accurately square or at right angles to gage or set the sheets in the printing press when printing.

Often, paper has a so-called deckel edge, and again, paper is cut very imperfectly in size and width particularly when large jobs are in hand. These conditions must be met in a folding machine, otherwise the paper sheets will often be confined or engaged too closely at their edges and stick or choke up a machine in their passage therethrough. In the present instance strip 38 is always fixed in any of its adjusted positions to engage the cut edge of the paper and strip 39 is made not only laterally adjustable but also laterally reciprocable to produce a so called jogger which will jog or move the sheet to the right and into contact with parts outward against the rounded arm end of bell-crank 46 which is operativcly engaged by cam 17 on counter-shaft 418, see Fig. 14.

RoZZcr frames 40.Two such'frames are shown as pivotally nspended from a cross shaft 50,one at either side of slot 6 topermit folding blade 9 to enter said slot without interference. Each frame 40 lics parallel with plate 4. but apart therefrom, and is locked to the main frame by a pin 51 passing through sides 2. l \Vithdrawal of pin 51 permits either roller frame 40 to be bodily lifted or swung upwardly to an, inclined position away from plate 4 (see Fig. 15) and this is a material advantage when access is desired behind the roller frame to make ad justments or changes or to remove paper when choked in the'machine. Each roller 30 is slidably mounted upon cross shafts 52 journaled in each frame 4L0, a spring Wire key 53 being used to slide in the spline or groove 5920f the shaft and hold the roller 30 frictionally in any adjusted position, see Fig. 16. Lateral adjustment and set position of the rollers is "determined by the width of the paper, or the relatively differentpositions the paper sheet may assume to central slot 6 in making a right angle fold. Each roller shaft 52 has a gear 55 at its outer end (see Fig. 8) which meshes with an intermediate idler pinion 56, said gears and pinions being mounted 011 the outer barof each frame and giving a continuous train of gears to rotate gll the shafts 52 at the same speed, power being derived from. pin ions or gears 57 rotating freely upon cross shaft 50 and meshing with gears 58 on roller 28 directly above the roller frames. Roller 28 is driven in turn by small pinion 59 meshing with a large gear 60 mounted to rotate freely at the outside of the main frame (see Figs 9 and lilon short shaft 61, and said gear is integral with or rigidly secured to bevel gear 62 which meshes with a like gear 63 on countershaftlS. The cam disks 16 are mounted upon and driven by this gear 60. Gears 55 also mesh with pinions 65 of rolls 31 and rotate the same reversely to'rollers 30, whereby a folded sheet is positively directed downward regardless of any spreading action of its folds, this being the natural tendency of nearly all sheets when folded, particularly in thick or heavy papers;

The second j0Zd.-Now assuming that the second folding blade 9 is set in the vertical position shown in Fig. 13, a second fold in the sheet can then be made at right angles to a fold made previously by blade 8. This is'done by a forward movement of blade 9 through the medium of an oscillating gear segment 66 rotatably mounted on cross shaft (J and controlled by a cam 68 on rotatable cross shaft (39, said segment meshing with rack sleeve 70 fixcc by set-screw '11 to short shaft 72 of forked lade support 78. Sleeve 70 is slida bly supported within cross bracket Tet which forms rigid part of the main frame between ifs sides 2, and a coiled spring 75 bearing againstboth said bracket and an enlargement on sleeve 70 serves to retire the blade and also 'maintainsworlring contact between segment-jrollergfi and cam (58'. However, blade support 73 is sulliciently spaced apart from. the end of sleeve "2'0 to permit an independent hingitudinal more meat of the blade and its'shaft in respect to said sleeve when r t-screw 71 is rel iased and blade 1) rotated. Otl'ierivise roller frames 10 would obstruct and prevent such rotation, but as arranged and constructed clearance may be had for the blade No oil'- sets or lugs are on the inside bar of the rack frame 10, the ones seen in dotted lines Fig. 13 being on theoutside bars to support the intermediate gears Fill and therefore out of range of the radial sweep of blade 9. A lnmrled linger or hand hold 77 on shaft 72 serves to shift and rotate blade 9 temporarily but if the blade is to be Withheld from active reciprocation in either slot 6 or i, set screw 7]. may be used to fasten shaft 72 in any changed or adjusted position with in sleeve 70.

Ope ation of the second folding blade 9 is necessaiily timed with that of the first folding blade 8, and to this end shaft (39 is driven by a train of gears and pinions 78 79. 80 and 81 mounted atone side of the main frame and operated by an electric motor 82, belt 83. and pulleys 84: and 85, respectively. Bevel gears 80 and 87 on cross shaft 09 and countershait 48 respectively, convey power to said coiu'itershaft and theretln'ough to the first folding blade 8 by ineansot' cam 88 on said (:(mntershaft and bell-c *ank 89 on roclr shaft 90 journal ed in sides 2 of the machine. However to complete the connections rock shaft 90 also has a -biturcatcd arm 91 which corresponds with the bifurcated arm of belhcnnk S9, and links 0"? at either side oi the machine connect said arms with the ends of blade supports A coiled sprii'ig- 93 on rock shaft 90 engnigrcs therewith and with the frame to always return blade 8 to an elevated po-- aitiou and serves also to keep roller 971- of the lll.l""ll1l in working engagement with Final i' mm/irl- 'old afc7 s.The action of blade 0 in making a second told is not nae; confined to forcing the sheet of paper thrl'uzgh either slot 6 or I, but also contemplates the rnrrying of the folded sheet into the bite of a pair of rollers 90 and 96 which may be termed either feed or creasing rollers or even ironing rolls. These rollers are rolatabl n'muntcd in close adjuxtaposition to central plated, a rotatable carrying frame 9? being; used for this purpose in which trunnion 07 represents the rotary axis lhrreo'l'. 'llna axis is coincident with the axis or rotatable blade 9 so that both said rs may be rotated and set correspondto puanit ro-action of the parts in ar-sing and stacking op- 3 pin 99 carried by deadapted to enter either loch, run 100- l l l l l l l l l i l l l l l r l l l l l 111 0: rollers the from this point that the folded mounted on rotatable frame hi', the first roll crs 05 and 00 as described serving as receiving and Feed rollers for the l'olded sheet, and the other three, represented by 101, 102 and 103, rcspectix-tely, being more properly creasing or ironing rollers to more complelicly liuish the Folds whether one or more in number. To this end alsin roller 101 coacts with roller 00, but its axial center in located relatively behind and beneath the food roller 9? (sec lit and 30) to per-- mil :1 third told to be made by a third lj'old- .iug blade 10-1 which is rcoipro :abl .niounteifl in line with the bite between rollers on and 101 and has a inovtanent in a, plane at right angles to the plane of the sheet as fed for-- ward by rollers 05 and 00 Rollers 102 and 1.03 are paired to work together to receire the sheet, from the bite of rollers 00 and 101, and although in ctl'cct also creasing or ironsame may also be termed discharge rollers For the finished sheet as it prod act is finally delivered to either or both staclicrs 105 and 100 respectively, and as will. hereinafter more full appear.

In making a third told, the sheet first enters a chute or narrow passage lorn'ied by a pair of plates 107 secured to rotary 1 nine 97, the mouth of the chute being directly opposite the bite line of rollers and 90, but with folding blade 10+ lcmaled interior (llalc An :ul'iustable grag'eatop 10S mounted on one of the plates .10]- limits the out ward movement of the paper as may be n'cileterinined, and when thus checked in its travel the tendency of the sheet is to buckle where unconfined owing to tho roulinuing lorccd feed produced by rollers 95 and 00 llowerer such buckling," is purposely desired within limits as the sheet must he held against gagoslop 108 to permit accurate Folding on prodcliruiiucll lines. and then hlado 10-1 comes into action iunncdiateljy. 'l'hia blade has a, curved tucking face and straight edge to l'old and carry the sheet into the bite of rollers hi3 and 101.

7720 paper (lo/Meir.i lllado 101 is also i'iroridcd with an adjustable plate hav in a curved deflector 110 adapted be permanently retired during; third folding ll U messes.

: relation of the parts is then as shown in Fig. 20. Here blade 104 is assumed to be stationary and fixed to lie across the path of the sheet as fed forward by rollers 95 and 96,-thus cuttin ofi' entrance into chute 107,

and deflector l is also advanced or set to for the rollers and the third folding blade on rotary frame 97 comprises a cross shaft 111 journaled at the top of the machine at one end thereof and driven by bevel gearing 112 at one end of countershaftAS. A swinging cross-head 113 is suspended from shaft 111 between sides 2 of the machine, and

trunnion 97 of rotary frame 97 is journaled in depending arm 100 of said cross head'1'13. A short vertical shaft 114 at one side of arm 1100 and bevel gearing 115 at the top thereofcommunicate power from shaft'lll to bevel gears 116 at short horizontal shaft 11? arranged centrally through trunnion 97 and bevelgearing 118 extend the line of power'connections to shaft 119 within frame 97. This arrangement permits rotation of frame 97 on its axis and gives constant power connections in all changed positions thereof.

New proceeding to trace the power connections for the feed and creasing rollers Jcarried by rotary frame 97, one train of gears 120 leads from one end of shaft 119 to roller's 101, 96 and 95 in the order named, see dotted lines Fig. 21, and a second train of gears 121 at the other end of framd 97 leads from shaft 122 of roller 101 to the shafts ofdischargerollers 102 and 103, thus completing the powerconnections for all the feed and creasing rollers on frame 97.

Third folding blade detaiZs.-This blade is intermittent. in operation and may be disconnected so as to be entirely inoperative;

Thus, slidable supports 123 for blade 104 occupy the.slotted ends of frame 97 and are connected by links 124C withthe free ends of a pair of arms 125 secured to the opposite .ends of an oscillating shaft 128 journaled in the ends of frame 97, see Figs. 17 and Oscillation is imparted to, shaft 126 by an arm thereon having a roller 127 adapted to ride against cam 128 sleeved on power shaft 119, a spring 129 connected with said arm and the end of frame 97 serving to maintain operative engagement. Cam 128 has a serrated or toothed hub 130 (see Fig. 18) adapted to interlock with a serrated collar 131 fixed to shaft 119, and a lift spring 132 mounted in a recess between the serrated parts tends to separatethe same: However a thumbnut 1532f holds the caminterlocked with collar 131 when blade 104 is to remain in actien. When released and the cam independezngtly rotated permit roller 127 to rest upon the low point of the cam, the blade assumes the position shown in Fig. 20 to defleet the sheet into the'creasing rollers"without further folding;

Adjustments=-lllhen producing two or more folds, particularly right angle folds, great diiiiculty is experienced in accurately alining the edges and in preventing overlap thereat on diverging lines. This is greater or less according to the kind of material given one fold and then presented edgewise as folded into the bite of two rollers to make a right angle fold, a greater resistance is offered at its folded corner than where free and separated. wConsequently folding blade 9 which makes the second fold is mll'de adjustable to advance the folded corner when this is found necessary, and to this end blade 9 is preferably hinged at one end by a pivot pin 133 to its support 73 and is further fastened by a bolt and slotted connection 134 between ears 135 at the opposite end of said support. An\ adjusting screw 136 in support 73 bears against, the edge of blade 9 to adjustably change the relative working angle of the front edge of said blade in respect to plate 4: and its slots, and as intiniated,, so that the bottom or folded lgidge of the sheets may be projected through the slots and into the bite of rollers 95 and 96 in advance of the other portion of the sheet. Asomewhat similar adjustment or change in working relations in' respect to blade 9 and plate 1 is obtained in the parts carried by rotary frame 97 by reason of an adjustable eccentric connection 135 which serves to support the free end of swinging cross head 113 upon the 11' am frame, This eccentric connection comprises a bolt 136' passing through arotatable barrel 137 located at either side of the machine in sides 2 thereof and where convenient slidable engagement is made with the slotted ends of inwardly extending arms 138 of cross head 113. Bolt 136 is off center in the barrel, and a knurled collar or head 139 gives a handhole to rotate barrel 137 when set screw 540, which servesto lock it in any adjusted position is released, see Figs. 1, 14 and 17. Qnly slight rotation of both barrels 137 is needed to make an appreciable change in angle from the vertical position of frame 97 relatively to plate 4.

Aacessz'bc'lity.-Removal of bolts 136 from barrels 137 also permits cross-head 113 and the frame 97 carried thereby to swing on cross shaft 111 without disturbing eccentric adjustments and such swinging of the parts, away from plate 4 gives convenient access to rollers 31 and other parts within the frame to oil or clean them and also to permit removal of any sheets of paper caught or choked at this point. Top plate 3 is also removable and when this is being folded. Thus, if a sheet of paper is I Oil done, crosshead 113 may be swung into a position entirely above the machine Where every part; on rotatable frame 97 may be conveniently inspected, cleaned, adjusted or repaired.

To eliminate iced trouble due to static electricity many parts of the machine are made of alunumun. 'llhns top plate is inadu o'li' tlns matmv to prevent cha ng ol? the paper with static electricity at the outset. .=.i'oller 28 is also made of aluminum, the other roller 28 being preferably of rubber or rubber covered. Again, all rolls 31 and rollers 30 are made of aluminum. ll made or other nudeizial say steel and spaced. apart: as shown the sheet; oi'paper has a tendency to curl in the tjlircct'ion olj'rotat'ion of the roll andw' l about: the same. As gravity is also la 7 l tilcpemled upon to feed the sheets downward after leaving ro. P plate l.- is also made o'li' aluntinuni to avoid clinging of fine sheets thereto when chargal with static electricity, Tho feed and creasing; rollers carrie l by rota'table 'lraine tli' are made or steel and pro ridcd with linurnrd 1); 0P- Ellgdglll surlanes. and are not; necessarily made o'l, aluminum as the paper sheets are always gripped l min them durii g feeding and crr' lop; og'icrations. Keller 9? is annularly p'i'tunft'l all regular dislanrcs lo permit the del'lector portions of plate 101) to pass the roller w'iihoul; inlerl'crein 'llollers Elf, 96 and .ltli' have llltllt' shalt mountod 'inslid able spring pressed boxes ill to give uni- .l orm gri 'i 'ugr ell'eris on the paper sheets and to porniit ditl'rrenl. llii(.'l\'uesses of sheets to he lied wi hoot; trouble.

Tile smdni ra.--l uc oil the malerial improvements it til "5 machine is embodied in the lug inedianism for lhe folded producl; and which nua'hanisar parlirularlv consl'rucled to cooperate with the discharge rollers in tho ro'lai'ily adjiuaiable Frame 5 i'eg'ardlcss of their variously sol positions .zi'n'l the w :lth, lt'ing 'tl'i or kind o'l" folded slice; produced. Vie d F om one end (Fig. l2) two independc st .kinp; devices 105 and H36, roswmt'ively. stand closely adjacent to rot: l able Frame 0'2. one at cilher side within the sides M of the main frame. .is both are idenl'icafl in conntruclion and are ('iporat'ed alike, on same i o'eueo letters will be up l in corn" mam parts in describing none. 31 (H ll slacker compri .es a angled lable baring a, dorwtailed oi'ninno ed portion the same for vcrtical :utjuslineut; on the in. llu ribs l l on odes l) lloweriufi f the set screws lal-Zi fa ten them at any eltwation. the .clo r table at lhe ltl'li is in if ele waited i. the

, adapted to support and the and not:

l l l l l t l finished product being to the left instead of to the right. However, this order is often reversed, dependent upon the original positioning of the paper in respect to the longitudinal center of the machine, or the kind of fold being made, or to any advantage of light; or other naiural conditions about the machine which will aid working thereof.

AliflZfl/lfti' IZI'II'UU 7)m/s.--Co11sta11t operation of the slackers obtained by power connection with countershait 4S, bevel gears 146 tiransinittii'ig rotation to vertical shaft 147 at one side of the machine and which shaft 14;? drives a cross shaft l'l-S at; the bottom by bevel gears 149. This shaft; in turn operates two short sha'lts 1510 supported in bearings 17 on sides 2. bevel gears 152 being again used to eonunuuicate power thereto. Shafts lflt') are :-l( (\'ctl and rotate within a rigid arm 153 fixed on each table 142, and earh shaft has a cam 1.5+ splined to slide len, ;th\\'ise thereon as tables 142 are 'aiscd or lowered. l larh cam in engages a roller l5?) on the shortv arm of oscillating gear segment 1.36 secured to lhe bottom of table 142. A pinion l5? and quatlrant gear 158 reciprocably operates a rackbar 1.59 at the bottom of each table on each actuation of segment 156 and a coil spring sleeved upon bar to!) and engaging a collar affixed thereto rcturns said parts to normal set: position as shown in Fig. 2!. cross yoke or bar 1(ll is attached to one. end of bar 159 and has rerticall standing; lup s 162 which project through open slots loil in the table and wherein they are adapted to reciprocate upon rm iprocation of bar 'l5fl. A channeled pusl1-pl:de'll3'l.- extends transversely across the top ol? each table H2 and is adjustably supported by downwardly extending stems U SlUUVWl in lugs lb? and secured at any suitablo elevation by set screws 166, see Figs. 3 and ii. The folded sheets are successively discharged from rollers 102 and 103 in line with and at the front; of pusl1plate 164 and (Ilt'll sheet is bodily shoved forward on the table upon the forward movement of the puslrplate as brought about by cam 154 and its associat'tal mechanism. \Vhen the folded sheet is thus banked with the other folded sheets and held in upright position by suitable sliding weights 107 see Fig. 19, one extreme edge of the :loldod sheet is forced beyond a short lip 16S of a. detaining plate 169 securod to {he inner side of table screws til see Figs. lfl and 21. A return or bark movement of push-plate 164: then oc :urs prior to discharge of another folded about. and in this return the sheet last staked is prm'cuted l ron'i opening at its open folded relation to -taho sheets by leaf springs 172 142 b sci/ parallel line with horizontal slot 7.

mo es;

i plate 164 and is adapted to be moved transversely of the table relatively as near to discharge rolls as may be desired to effectively prevent spreading of the open or free edges of the folded sheet if lip 168 fails of its purpose. A leaf spring 174 secured-in slide 175 engages deflector 17 3 to force it outward and this spring is a light spring which readily yields when a folded sheet is discharged from rollers 102 and 102-, against deflector 173. A finger or stop '180 is also slidably mounted in channeled push-plate 164 to limit the outward movement of the folded product when discharged upon table 14-2, see Figs-17 and 19.

Slide 175 is square in shape and beveled alikeat all four edges, so that the same may .be inserted in the push-plate channel either in the posit-ion shown in Fig. 21 or at right angles thereto which will place the pivot. end of deflector 173 uppermostwith the body of the deflector plate inclined. forwardly and downwardly in respect to the top face of table 142 as shown in Fig. This latter position of the parts is necessary when the folded product is discharged downwardly instead of laterally, although the function of the deflector is unchanged as it series in both instances to keep the folded sheet from opening after it is banked on table 142.

Parallel f0lds.VVhen parallel folds are made, frame 97 is rotatably set transversely of the machine with-the rollers thereoff 1in 1e finished product is then discharged down- 'wardly instead of laterally and although only a six-page and eight-page parallel fold 1s shown in diagrammatic views. Figs. 6

fand 7, respectively, it will he understood ing devices may be used. particularly if the sheets are wide. say the full width of Hi machine. This is possible berause both stacking tables may be brought to the. same horizontal plane and because the drive mechanism of both st ackers are oporatively driven in unison.

Stacker control.Therc are occasions.

however when it is desirable to stop stacking operations and again when it is necessary to differently time the active participation of push-plate 164.- with the, discharge rollers, particularly as said rollers run at a constantspeed but deliver sheets of different widths or lengths. To this end bevel gearlo on countershaft 148 has a rat ghet hub which interlocks with a slidable ratchet collar 177 adapted to be rotated by pin 178 secured to said shaft and locked against end movement by screw nut 179. Bevel gear l lll is free to rotate on said shaft when collar 177 is released therefrom. Any suitable device which will permit a disconnection or change in timing operations for the stackers may be used. at this point or elsewhere in the line of the drive connections.

In-Fig. 23 a modification in the. arrangement of upper plate 3 may be noted. the said plate at tlfe feed end of the machine being inclined to facilitate feeding: operations. In Fig. 24; a plate 181 is shown with a curved upper edge to deflect a sheet having a single fold into the bite of rollers 95 and 96 and thence against deflector 110 and out between feed rollers 96 and 101 without further fold. Pate 181 may he aseparate at tachmentQor stop plates may be constructed and used for this purpose.

It is not deemed necessary to describe all the folds adapted to be made by this machine. as it is obvious that many diflercnt kinds of folds can be made by presenting the sheets variousl in respect to the slots in the central plate -l and in respect. to the various folding blades as well as by setting the various gage-stops in different positions andby rotatable adjustment of blade 9 and frame 97.

The variously folded sheets herein re ferred to and represented by Figs. 2 to 7. inclusive are further designated sheets A. B, C. D. E and F, running consecutively with thcgsaid figures. and Fig. 9. sheet A. has a single transverse fold at its middle. while 'shcet B is folded at right angles through its center lengthwise and longitudinally. Fig. 4. sheet C. has a single transverse fold and two longitudinal folds divid ing the same into three different subdivisions. Fig. 5, sheet I). shows three transverse folds and one longitudinal fold. Fig. (3 has two tIHXISVCYSGHEOlClS equal distances from its ends and'Fig. 7 has three folds ing indicated by dotted lines.

What we claim is:

1. In a paper folding machine. a feed table having a slot andn reciprocating folding blade in line with said slot. feed rollers on one side of. said blade and a stop-gage on the other side thereof, and a paper buckling device on said table between said rollers and the blade.

lransvcrselyfthe folds in all said sheets beframe.

"ease;

the dilferent positions of the rotatable 19; In a paper folding machine, a rotatable frame and folding devices mounted thereon having power connections permitting rotation of said frame, in combination with stackin' devices having power connections and a justable timing and throw-out connections and being movably mounted in respect to said rotatable frame to permit rotation thereof and to give adjustable set positions in respect thereto in all of its different working positions.

20. In a aper folding machine, a plurality of folding devices adapted to make a plurality of folded paper sheets, one of said devices being frnounted upon a rotatable frame in respect to another foldlng device,

in combination with a stacking device vertically adjustable to receive the folded product thereon from either its side or top dependent upon the position of said rotatable rame.

21. In a paper folding machine, a guideway comprising a platehaving bisecting slots, a reciprocatlng blade adjustably mounted in respect thereto, and means comounted in respect to said rotatable means to receive and stack the folded product in all of the different delivery positions.

22. In a paper folding machine, a vertically reciprocating folding blade, a slotted guidcway, a horizontally reciprocating blade, a rotatable frame mounted on a horizontal axis in alinement with said horizontally reciprocating blade, and a third reciprocating bladeand feed and finishing rollers carried by said rotatable frame, in combination with stacking devices ad'ustably mounted in respect to said'rotata lc frame to permit adjustments thereof and to set the same for cooperation With the rollers in all of their different discharge positions.

In testimony whereof we aflix our signatures in the presence of two witnesses.

ALBURT D. PEJAUO. JOHN J. ZEITZ. I Witnesses E. M. FISHER, F. 0. Museum. 

